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64 Audio

64 Audio Duo In-Ear Headphones

64 Audio Duo In-Ear Headphones

Regular price $1,199
Sale price $1,199 Regular price

Cup style More information
Open-back headphone designs are often higher-performance but have poor noise isolation and leak sound. Closed-back designs provide better noise isolation and leak less sound.

Open-Back

Wearing style More information
Over-ear headphones sit over your ear and surround your ear with a ring of padding. On-ear headphones are padded but rest on top of your ear. In-ear monitors are worn inside your ear canal.

In-ear

Driver type More information
Speakers and headphones use a device called a 'driver' to create sound. Different types of drivers have different strengths and weaknesses, but can all produce great sound. Common varieties include dynamic, planar magnetic, and electrostatic.

Balanced Armature, Dynamic

Connectivity More information
Connectivity refers to the method in which the headphones connect to the audio source. Headphones can be either wired or wireless.

Wired

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64 Audio

64 Audio Duo In-Ear Headphones

Regular price $1,199
Sale price $1,199 Regular price

64 Audio Duo In-Ear Monitor Headphones with ear tips and packaging

64 Audio’s latest UIEM, Duo, is a dual driver hybrid design. Built with the complete Tia System, Apex Core, Wave Sync, and LID, Duo presents 64 Audio’s signature balanced sound in a whole new way. The simple audio design captures the listener’s auditory senses while forgetting they’re wearing IEMs in the first place.

64 Audio Duo open-back in-ear headphones

The complex faceplate assembly not only serves an important role in protecting the shell of the IEM while allowing air to flow freely, it is also a major step in 64 Audio’s product design evolution. Duo is a timeless and elegant design reminiscent of open-back over-ear headphones.

64 Audio in-ear headphones made in Washington | Available on Headphones.com

SOUND

Duo feels light, leaving your ears feeling open and relaxed even for long listening periods. You feel simultaneously connected to your physical surroundings while you’re enveloped by music. Relaxed tonality lets you put them on and get lost. It’s able to present a non-analytical top-end while retaining air and sizzle. The vast open air sensation supports an unobstructed soundstage with impactful center imaging (unlike many other open back headphones) as well as no loss of bass. Duo effortlessly produces deep and rich low frequencies with plenty of sub bass.

64 Audio Duo dual driver in-ear monitor headphones close-up

TECHNOLOGY

Exclusive technologies that challenge traditional in-ear monitor designs to give you the absolute best listening experience

tia

Rather than constricting the sound of the drivers by fitting a tube onto them, Duo’s complete Tia System reduces unwanted resonance and distortion by allowing the 9mm Dynamic Driver + Tia High Driver to radiate freely into the single large Tia bore with no obstructions to the front of the drivers.

Apex Core

Apex Core is a deeper understanding of air movement within an earphone system.
Duo’s faceplate features a striking perforated grill that leaves the shell of the IEM open to the outside atmosphere for a less obstructed airflow resulting in an effortless reproduction of music and minimal physical fatigue.

Wave Sync

Due to the high crossover point between the two drivers, Wave Sync was developed to ensure coherence; another industry first. By using a type of “all-pass” filter, we’re able to introduce a crossover while correcting for time without having to change the physical distance between the drivers.

SPECIFICATIONS


Driver Type/Count

2 Drivers - One dynamic driver and one balanced armature driver


Driver Configuration


1 tia high, 1 dynamic low


Frequency Response


20Hz – 20kHz


Sensitivity


98dB/mW (98dB @ 1kHz @ 1mW (95mV)


Impedance



Crossover


Integrated 2-way passive crossover


Isolation


-12dB internal apex technology

 

IN THE BOX

  • Duo Universal In-Ear Monitors
  • 64 Audio Premium Leather Case
  • TrueFidelity Foam Eartips (S,M,L)
  • SpinFit Silicone Eartips (S,M,L)
  • Silicone Eartips (S,M,L)
  • Black Premium Cable
  • Round Sticker

Specifications

Title Description
Driver Type/Count 2 Drivers - One dynamic driver and one balanced armature driver
Driver Configuration 1 tia high
1 dynamic low
Frequency Response 20Hz – 20kHz
Sensitivity 98dB/mW (98dB @ 1kHz @ 1mW (95mV)
Impedance
Crossover Integrated 2-way passive crossover
Isolation -12dB internal apex technology

Our review

Video review

Written review

FAQs

What's In The Box?

  • Duo Universal In-Ear Monitors
  • 64 Audio Premium Leather Case
  • TrueFidelity Foam Eartips (S,M,L)
  • SpinFit Silicone Eartips (S,M,L)
  • Silicone Eartips (S,M,L)
  • Black Premium Cable
  • Round Sticker

Reviews